CN109132837B - Steel wire rope winding system capable of automatically adjusting balance of lifting appliance - Google Patents
Steel wire rope winding system capable of automatically adjusting balance of lifting appliance Download PDFInfo
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- CN109132837B CN109132837B CN201811084194.2A CN201811084194A CN109132837B CN 109132837 B CN109132837 B CN 109132837B CN 201811084194 A CN201811084194 A CN 201811084194A CN 109132837 B CN109132837 B CN 109132837B
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- steel wire
- wire rope
- lifting appliance
- wound
- balance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Cable Arrangement Between Relatively Moving Parts (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a steel wire rope winding system capable of automatically adjusting the balance of a lifting appliance. This system includes two reels, four hoist assembly pulleys, four upper pulley groups, four balance levers, four wire rope, four electric putter and a hoist crossbeam, wherein: four steel wire ropes are wound on the two winding drums, after each steel wire rope is wound out of the winding drum, the steel wire rope is wound to one end of a balance lever after a lifting appliance pulley block and an upper pulley block are wound, the other end of the balance lever is connected with an electric push rod, and the four lifting appliance pulley blocks are respectively installed on four corners of a lifting appliance cross beam. Wherein, each sling pulley block is provided with an electric element for detecting the load levelness, such as a stay wire encoder or a laser distance meter and the like. The system solves the problem that the load is easy to incline in the lifting, carrying and lowering processes.
Description
Technical Field
The invention relates to the technical field of bridge and portal cranes, in particular to a steel wire rope winding system capable of automatically adjusting the balance of a lifting appliance.
Background
At present, a steel wire rope winding system of a hoisting mechanism in a bridge crane and a portal crane mainly adopts three structural modes, please refer to an attached drawing 1, an attached drawing 2 and an attached drawing 3 respectively:
the wire rope winding system of figure 1 comprises a drum, a spreader block, an upper sheave block, a balance sheave and a wire rope. The steel wire rope wound out of the winding drum is wound on the hanger pulley block, the upper pulley block and the balance pulley and then wound back to the winding drum;
the wire rope winding system of figure 2 comprises a drum, a spreader block, an upper sheave block, a balance lever and two wire ropes. Two steel wire ropes wound out of the winding drum are respectively wound on the lifting appliance pulley block and the upper pulley block and finally respectively taken up to two ends of the balance lever.
The wire rope winding system of figure 3 comprises two drums, two spreader pulley blocks, two upper pulley blocks, two balance levers, four wire ropes and a spreader beam. Two steel wire ropes wound out of each winding drum are wound on the lifting appliance pulley blocks and the upper pulley block respectively and finally are wound to two ends of the balance lever respectively, and the two lifting appliance pulley blocks are installed at two ends of a lifting appliance beam respectively.
The steel wire rope winding systems shown in the attached figures 1 and 2 are provided with only one lifting appliance pulley block, namely, the steel wire rope winding systems are provided with only one lifting point, the center of gravity of a load is difficult to ensure to coincide with the center of the lifting appliance pulley block in the horizontal X direction and the horizontal Y direction, the load is very easy to incline during carrying, and the load is very easy to tip over when carrying the load with a large area.
The steel wire rope winding system in fig. 3 is provided with two lifting appliance pulley blocks, namely two lifting points are arranged in the steel wire rope winding system, the interval is large, the gravity center of the load can be ensured to be positioned in the two lifting appliance pulley blocks in the horizontal X direction, and the stability of the load in the carrying process is partially improved. Even the load gravity center is just in time between two hoist assembly pulleys, load can not take place to tumble when the transport, nevertheless because the center coincidence of load gravity center hardly guarantee with two hoist assembly pulleys causes the wire rope atress on two hoist assembly pulleys inconsistent in size to arouse that the deflection of the wire rope on two hoist assembly pulleys is inconsistent, can lead to load to take place slight slope when the transport equally.
The three steel wire rope winding systems are suitable for the working conditions that the normal operation cannot be influenced when the load inclines in the lifting, carrying and transferring processes, safety accidents cannot occur, and the steel wire rope winding systems are particularly suitable for the working conditions with uniform load density. When the load is uneven, the three systems are easy to incline, so that the hoisting system is unstable and accidents are easy to happen.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides the steel wire rope winding system capable of automatically adjusting the balance of the lifting appliance, so that the problem that a bridge crane and a portal crane are easy to incline in the process of lifting uneven weights is solved.
Therefore, the invention discloses a steel wire rope winding system capable of automatically adjusting the balance of a lifting appliance. This system includes two reels, four hoist assembly pulleys, four upper pulley groups, four balance levers, four wire rope, four electric putter and a hoist crossbeam, wherein: two steel wire ropes are wound on each winding drum and extend out of two directions, the two steel wire ropes are respectively wound on a hanger pulley block and an upper pulley block and connected with one end of a balance lever at a fixed position, and the other end of the balance lever is connected with an electric push rod; the axes of the two winding drums are on the same straight line, the four lifting appliance pulley blocks are respectively connected with four corners of a lifting appliance cross beam, and the electric push rod is connected with a control system.
Furthermore, the four lifting appliance pulley blocks are all provided with electric elements for detecting levelness, and the electric elements are connected with a control system.
The steel wire rope winding system capable of automatically adjusting the balance of the lifting appliance can ensure that a bridge crane and a portal crane do not incline when lifting a heavy object with uneven load, and ensure the stability of the system.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1, 2 and 3 are schematic diagrams of the structure of a wire rope winding system of a current door and bridge crane;
FIG. 4 is a schematic diagram of the wire rope winding system structure of the present invention for a door and bridge crane;
numerical description: 1-winding drum, 2-steel wire rope, 3-upper pulley group, 4-hanger pulley group, 5-balance pulley, 6-balance lever, 7-electric push rod, 8-hanger beam and 9-beam.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
In order to better explain the technical scheme of the invention, the structure of the prior art is explained:
please refer to fig. 1, which illustrates a wire rope winding system, comprising a winding drum 1, a wire rope 2, an upper pulley set 3, a spreader pulley set 4 and a balance pulley 5. A steel wire rope 2 wound out of the winding drum 1 is wound on the lifting appliance pulley block 4, the upper pulley block 3 and the balance pulley 5 and then is wound back to the winding drum 1;
referring to fig. 2, the wire rope winding system includes a winding drum 1, a wire rope 2, an upper pulley set 3, a spreader pulley set 4, and a balance lever 6. And the steel wire ropes 2 wound out of the winding drum are respectively wound on the lifting appliance pulley block 4 and the upper pulley block 3 and finally respectively taken up to two ends of the balance lever 6.
The steel wire rope winding systems shown in the attached figures 1 and 2 are only provided with one lifting appliance pulley block 4, namely the steel wire rope winding systems are only provided with one lifting point, the center of gravity of a load is difficult to ensure to coincide with the center of the lifting appliance pulley block 4 in the horizontal X direction and the horizontal Y direction, the load is very easy to incline during carrying, and the load is very easy to tip over when carrying the load with a large area.
Referring to fig. 3, the wire rope winding system includes a winding drum 1, a wire rope 2, an upper pulley set 3, a spreader pulley set 4, a balance lever 6 and a beam 9. The steel wire rope 2 wound out of the winding drum 1 is wound on the lifting appliance pulley block 4 and the upper pulley block 3 respectively and then is finally wound to two ends of the balance lever 6 respectively, and the two lifting appliance pulley blocks 4 are installed at two ends of the cross beam 9 respectively.
The steel wire rope winding system in fig. 3 has two spreader pulley blocks 4, which are equivalent to two lifting points and a larger interval in the steel wire rope winding system, so that the center of gravity of the load can be ensured to be positioned in the two spreader pulley blocks 4 in the horizontal X direction, and the stability of the load in the carrying process is partially improved. Even if the gravity center of the load is just between the two lifting appliance pulley blocks 4, the load cannot be tipped during the transportation, but the gravity center of the load is difficult to ensure to coincide with the centers of the two lifting appliance pulley blocks 4, so that the stress of the steel wire ropes 2 on the two lifting appliance pulley blocks 4 is inconsistent, the deformation of the steel wire ropes on the two lifting appliance pulley blocks 4 is inconsistent, and the load can slightly incline during the transportation.
Referring to fig. 4, the present invention is a wire rope winding system for automatically adjusting the balance of a spreader. This system includes two reels 1, four wire rope 2, four upper sheave group 3, four hoist assembly pulley 4, four balance lever 6, four electric putter 7 and a hoist crossbeam 8, wherein: two steel wire ropes 2 are wound on each winding drum 1 and extend out from two directions, the two steel wire ropes 2 are respectively wound on a lifting appliance pulley block 4 and an upper pulley block 3 and are connected with one end of a balance lever 6 at a fixed position, and the other end of the balance lever 6 is connected with an electric push rod 7; the axes of the two winding drums 1 are on the same straight line, the four lifting appliance pulley blocks 4 are respectively connected with four corners of a lifting appliance cross beam 9, and the electric push rod 7 is connected with a control system. Wherein, each sling pulley block 4 is provided with an electric element for detecting the load levelness, such as a stay wire encoder or a laser distance meter and the like.
In addition, the electric push rod 7 of the present invention may be replaced with other pushing means having the same function.
Compared with the prior art, the invention has the beneficial effects that firstly, the four lifting appliance pulley blocks are adopted and distributed on the four corners of the lifting appliance beam, so that the gravity center of the load is ensured to be in a rectangle formed by the four lifting appliance pulley blocks in the horizontal X direction and the horizontal Y direction, and the load is ensured not to tip over when being lifted, carried and lowered; more importantly, four steel wire ropes respectively control four lifting appliance pulley blocks on a lifting appliance beam, and an electric push rod is arranged on the other side of a balance lever at the rope retracting end of each steel wire rope. When the electrical element detects that the height difference of the four sling pulley blocks, namely the levelness of the load, exceeds the allowable range, the control system sends an instruction to adjust the length of the corresponding steel wire rope by controlling the telescopic movement of one or more electric push rods, so that the height difference of the four sling pulley blocks, namely the levelness of the load, is ensured to be within the allowable range.
The steel wire rope winding system capable of automatically adjusting the balance of the lifting appliance can ensure that a bridge crane and a portal crane do not incline when lifting a heavy object with uneven load, and ensure the stability of the system.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (1)
1. The utility model provides an automatic wire rope winding system that adjustment hoist is balanced, includes two reels, four hoist assembly pulleys, four upper pulley groups, four balanced levers, four wire rope, four electric putter and a hoist crossbeam, its characterized in that:
two steel wire ropes are wound on each winding drum and extend out of two directions, the two steel wire ropes are respectively wound on the hanger pulley block and the upper pulley block and are connected with one end of a balance lever at a fixed position, the other end of the balance lever is connected with an electric push rod, and the distance from a fixed fulcrum of the balance lever to a connecting end point of the balance lever and the steel wire ropes is smaller than the distance from the fixed fulcrum of the balance lever to the connecting end point of the balance lever and the electric push rod;
the axes of the two winding drums are on the same straight line, the four lifting appliance pulley blocks are respectively connected with four corners of a lifting appliance cross beam, and the electric push rod is connected with a control system;
the four lifting appliance pulley blocks are all provided with electric elements for detecting levelness, the electric elements are connected with a control system, and when the electric elements detect that the load levelness of the four lifting appliance pulley blocks exceeds an allowable range, the control system sends an instruction to adjust the length of the corresponding steel wire rope by controlling the telescopic movement of one or more electric push rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811084194.2A CN109132837B (en) | 2018-09-18 | 2018-09-18 | Steel wire rope winding system capable of automatically adjusting balance of lifting appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811084194.2A CN109132837B (en) | 2018-09-18 | 2018-09-18 | Steel wire rope winding system capable of automatically adjusting balance of lifting appliance |
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| Publication Number | Publication Date |
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| CN109132837A CN109132837A (en) | 2019-01-04 |
| CN109132837B true CN109132837B (en) | 2021-02-02 |
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| CN201811084194.2A Active CN109132837B (en) | 2018-09-18 | 2018-09-18 | Steel wire rope winding system capable of automatically adjusting balance of lifting appliance |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110092288B (en) * | 2019-06-05 | 2024-01-09 | 上海建工四建集团有限公司 | Multi-layer shear wall reinforcement cage hoisting system |
| CN111392627B (en) * | 2020-04-30 | 2022-03-11 | 中国水利水电夹江水工机械有限公司 | Two-layer four-rope safety manned broken rope balancing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4314460A1 (en) * | 1993-05-03 | 1994-11-10 | Eberswalde Kranbau Gmbh | Arrangement for damping the pendulum motion of the load of a crane, in particular a container crane |
| CN201694747U (en) * | 2010-06-21 | 2011-01-05 | 南昌铁路局南昌机械厂 | Twelve-rope container anti-swing mechanism |
| CN202116176U (en) * | 2011-02-28 | 2012-01-18 | 无锡华东重型机械股份有限公司 | Three-deflection device of container spreader |
| CN203128088U (en) * | 2012-11-29 | 2013-08-14 | 银川银重（集团）起重机有限公司 | Steel wire rope winding system of four-point hoisting three-point balancing anti-swing hoisting mechanism |
| CN205500594U (en) * | 2015-12-24 | 2016-08-24 | 三一海洋重工有限公司 | Anti -sway device and hoist of hoist |
| CN207046706U (en) * | 2017-06-23 | 2018-02-27 | 湖南中铁五新重工有限公司 | Subtract and shake hoisting system and crane |
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